Hose-coupling.



No. 7I0,768. Patented Dot; 7, I902.

W. A. FORD. HOSE COUPLING.

(Lpplicltion filed Aug. 7, 1901.)

(No Model.)

W1TNES5S: JNVEIVTOR:

v v I a! ATTORNEY.

"THE "cams Prrzws 00., Pgicn'uuma. WASHINGTON, 0. c

Nitrite Sra'rns PATENT FFIQE.

WILLIAM A. FORD, OF LOUISVILLE, KENTUCKY.

HOSE-=CO UF LENG.

SEECXFZCATION forming part of Let-ters'fi atent No. 710,768, datedOctober 7, 1902.

To (all whom, it Tim-y concern:

Be it known that 1, WILLIAM A. FORD, a citizen of the United States,residing at Louisville, in the county of Jefferson and State ofKentucky,have invented certain new and useful Improvements inHose-Couplings; and Ido declare the following to be a full, clear andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, refer.- encebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form a part of this specification.

My invention relates to the coupling-nut and the packing for the jointat detachable connections between sections of hose for conveying wateror other liquids orv gases.

The object of this invention is to provide a hose-coupling in which thepacking-washer may be retained when the coupling is disconnected and inwhich the washer may perform its function as a joint-packing in a freeand reliable manner without interference and injury thereto by the nutor by the nipples on account of being dragged by the nut in itsrotation.

The invention consists of a coupling-nut provided with apacking-retaining cavity and a packing-washer in the cavity having adiameter greater than that of the threaded orifice of the nut; and itconsists also in" the novel parts and in the combination and arrangementof parts, as hereinafter particularly described, and pointed out in theclaims.

Referring to the drawings, Figure 1 is a side view of a hose-couplingconstructed in accordance with my invention, parts of which are brokenaway to expose portions of hidden parts; Fig. 2, a central longitudinalsectional view of the coupling, showing the details of my improvementsas preferably constructed; Fig. 3, a transverse sectional view on theline as as in Fig. 2, and Fig. 4 a central longitudinal sectional viewshowing my improvements in a nut designed to be made in small sizes.

Similar reference characters in the several figures of the drawingsdesignate corresponding parts.

In the drawings, A and A designate ends of two sections of hose; B, thenipple, having ple.

the flange a swiveled in the nut and having the joint-face h; B, thecompanion nipple, having the screw-threads Z) and the joint-face "i; C,the coupling-nut, having the screwthreads Z) for engaging the threads I)of the nipple, and E the packing-washer, all of the above parts beingwell known except as relates to the particular features embraced in myinvention, which will now be described in detail.

The nut C may be made in any suitable form exteriorly to be operated bysuch types ,of wrenches as may be preferred.

It has the usual threads Z) in one end, and also the smooth-face flangem in the opposite end thereof for engaging the flange a of the nip-Between the flange m and the thread 1), adjacent to the bearing-face ofthe flange m, I form an annular cavity D of suitable width and ofgreater diameter than the diameter of the bore in which the threads 1)are formed, and in the said cavity I insert the packing-washer E, whichI form with a diameter greater than the diameter of said bore in whichthe threads I) are formed and less in diameter than the diameter of thecavity D, and also the washer E has a body dimension, referring tothickness, which is less than the width of the cavity, so that when thenut O and the nipple B are connected and the washer E inserted in thecavityD the washer may be free to rotate in the cavity.

In some cases, particularly in the larger sizes of couplings havingcomparatively large packings, the nut O is composed of two parts, whichare preferably detachable in order to easily renew the packing, thesmaller part C, having the flange m as an integral part thereof, beingsuitably joined to the larger part or the nut proper. The two parts ofthe nut are preferably connected by means of screw-threads d and cl,these being preferably left-hand if the threads I) and b be righthand,as it is customary to make them. The part 0 has sockets e in which toinsert a wrench, or the part may be adapted to be operated in any othersuitable manner. The part 0 has a suitable shoulder, against which thepart 0 is seated.

It will be understood that the nipple B may have and in the larger sizesshould have exterior projections or squares or be suitably designed sothat a wrench may be applied for holding the nipple against rotationthereof when tightening the coupling-nut.

In practical use the nipple B having been inserted in the nut G and thehose attached to the nipple in a suitable manner the packing-washer Emay then be inserted in the cavity D, when connection may be made withanother section of hose having the nipple B attached thereto, and as thenut is being rotated on the nipple the joint-faces h and i will bebrought together and press the washer E between them without the washerbeing distorted or injured in any way, as it will be stationary,whilethe nut moves about it,and a tight joint will be assured, obviating thetrouble that may be caused by the coupling-nuts i n common use, intowhich the washer may be crowded by reason of the nut dragging the washeror the edges thereof and forcing fragments between the joint-faces.lVhen the coupling is disconnected, it will be seen that the washer willbe retained in the nut, so as to be ready for instant use when requiredwhen again connecting the hose-sections.

The utility and value of this improvement will be apparent particularlywhen applied to fire-hose.

Having thus described my invention, What I claim is 1. In ahose-coupling, the combination of the nut having the bearing-shoulder inits bore near one end thereof, the removable flange seated against saidshoulder, the nipple having its external diameter corresponding to theinternal diameter of said remov-- able flange, the flange on said nippleengaged by said removable flange, the hose extending over the exteriorof said nipple and isolated from said removable flange and also saidflange on said nipple, the thread in the opposite end of said nut, theflangeless nipple, the thread on said flangeless nipple, the hoseextending over the end of said flangeless nipple, and the packing-washerbetween said nipples, as shown and described.

2. In a hose-coupling, the combination of the nut having the annularbearing-shoulder therein, the removable flange having the larger and thesmaller bores at opposite ends thereof and seated against said shoulder,the nipple having the flange thereof extending into the said largerbore, the opposing nipple,the packing-wasl1er,and the hose attached tosaid nipples, as shown and described.

3. The herein-described improvement in hose-couplings having the flangednipple, and the threaded opposing nipple cooperating with the nut, whichimprovement consists in the nut having the annular bearing-shouldertherein, and the removable flange gaged by said shoulder and seatedthereon and also engaging said flanged nipple, the nut having the recessnear said shoulder, as shown.

In testimony whereof I affix my signature in presence of two witnesses.

\VM. A. FORD.

'Witnesses:

RUFUS PUTNAM, Gno. R. MIDDLETON.

